Overview
Features and Benefits
- Optimized for 315MHz or 433MHz ISM Band
- Operates from Single 3.3V or 5.0V Supplies
- High Dynamic Range with On-Chip AGC
- Selectable Image-Rejection Center Frequency
- Selectable x64 or x32 fLO/fXTAL Ratio
- Low 5.2mA Operating Supply Current
- < 2.5µA Low-Current Power-Down Mode for Efficient Power Cycling
- 250µs Startup Time
- Built-In 50dB RF Image Rejection
- Receive Sensitivity of -114dBm
Product Details
The MAX1473 fully integrated low-power CMOS superheterodyne receiver is ideal for receiving amplitude-shift-keyed (ASK) data in the 300MHz to 450MHz frequency range. Its signal range is from -114dBm to 0dBm. With few external components and a low-current power-down mode, it is ideal for cost- and power-sensitive applications typical in the automotive and consumer markets. The chip consists of a low-noise amplifier (LNA), a fully differential image-rejection mixer, an on-chip phase-locked-loop (PLL) with integrated voltage-controlled oscillator (VCO), a 10.7MHz IF limiting amplifier stage with received-signal-strength indicator (RSSI), and analog baseband data-recovery circuitry. The MAX1473 also has a discrete one-step automatic gain control (AGC) that drops the LNA gain by 35dB when the RF input signal is greater than -57dBm.
The MAX1473 is available in 28-pin TSSOP and 32-pin thin QFN packages. Both versions are specified for the extended (-40°C to +85°C) temperature range.
Applications
- Automotive Remote Keyless Entry (RKE)
- Garage Door Openers
- Home Automation
- Local Telemetry Systems
- Remote Controls
- Security Systems
- Wireless Sensors
Product Categories
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
Documentation & Resources
-
MAX1473 Reliability Data1/12/2023PDF33K
-
Remote Keyless Entry Systems Overview10/21/2002
-
How to Optimize an ISM Radio Frequency (RF) System10/1/2012
-
Design a Crystal Oscillator to Match Your Application9/18/2012
-
Crystal Calculations for ISM-RF Products6/29/2012
-
Squelch in ISM-RF Receivers6/25/2012
-
Baseband Calculations for ISM-RF Receivers6/20/2012
-
RF Basics Guide4/12/2012
-
Radio Link-Budget Calculations for ISM-RF Products11/2/2011
-
PCBs Layout Guidelines for RF & Mixed-Signal9/14/2011
-
Avoid PC-Layout \"Gotchas\" in ISM-RF Products4/12/2011
-
Power Line Communication Circuit Guide | Maxim Integrated5/10/2010
-
Introduction to Hearing Aids and Important Design Considerations5/10/2010
-
Data Slicing Techniques for UHF ASK Receivers12/22/2005
-
Requirements of Remote Keyless Entry (RKE) Systems2/16/2005
-
Calculating the Sensitivity of an ASK Receiver11/5/2003
-
Designing Remote Keyless Entry (RKE) Systems10/21/2002
-
How to Choose a Quartz Crystal Oscillator for the MAX1470 Superheterodyne Receiver8/21/2002
Tools & Simulations
Design Tools
ISM-RF Crystal Calculator workbook is a tool for properly selecting and configuring the reference oscillator for various industrial/scientific/medical radios.
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Support & Discussions
Sample & Buy
Ordering FAQs
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
List Pricing
(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Sampling
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.
Evaluation Boards
Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.